Firstly, it's great to hear of the sport growing in popularity in China. I last visited China (Shanghai) on business in late 2019. It was a really vibrant place back then. I'm not sure I would be comfortable going back there ATM, but who knows what the future holds.
Personally, I've never come across TICA. I suspect they're more aimed at the US market, but please correct me if you think I'm wrong on that.
Whilst bait boats are great tools, they aren't cheap. In fact, compared to a set of big pit reels, a decent bait boat with GPS is very expensive and it's big and heavy. Whilst I'm sure you can be much more accurate with a bait boat, when you have to add that to a barrow and potentially lug it up to a mile to get to your swim, potentially sacrificing something else, the bait boat will probably be one off the first things to be removed from the barrow. Even though I could probably afford it now, I've got other things to worry about.
The IP disputes is probably only a matter of time. Once a big manufacturer gets a significant new product copied and put onto the market very early on in production, then the issue will be taken seriously and something will get done. Right now, from what I can see, it's lots of small things such as line strippers, swivels, rig bits etc. being picked up and sold cheaply in bulk by small discount sellers here in the UK.
As for design, that comes from necessity. Once there are anglers with specific new problems to solve, then people will start designing solutions for those problems and those problems may be specific to the location. It'll be interesting to see what comes in the future when new problems come up.
That's an interesting blowback rig. Personally, I prefer a shorter shank, but it's whatever works. Is that what you caught the fish on? Is that a grass carp? Most of our fishing over here and on this forum is for King/Common Carp (Cyprinus Carpio), but doesn't mean we won't discuss other species.
Tight lines!